aBook: 200 useful topics in 10 Volumes + 2 Business Volumes - more than 20,000 sound-tracked words and more than 4,000 sound-tracked expressions. *The selected Mozart sonata, very appreciated by Einstein, accompanies you with the aim of helping you to memorize the words. The science journal Nature reports that this sonata can stimulate mental activity - test it and learn languages. (Sonata D-Dur, KV448, for two pianos by the Gold Duet Sorokina/ Bakhchiev - VistaVera). Find other information and guides in 40 languages on www.01mobi.com. Download and start listening now!

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